Microscopic mechanisms of radiation-induced light attenuation in pure silica-core fibers: influence of heat treatment in the process of metal and polyimide coating application

Pavel F. Kashaykin; Alexander L. Tomashuk; Irina S. Azanova; Olga L. Vokhmyanina; Tatiana V. Dimakova; Igor A. Maltsev; Yulia O. Sharonova; Elena A. Pospelova; Evgeni M. Dianov

doi:10.1117/12.2520428

16 April 2019 Microscopic mechanisms of radiation-induced light attenuation in pure silica-core fibers: influence of heat treatment in the process of metal and polyimide coating application

Pavel F. Kashaykin, Alexander L. Tomashuk, Irina S. Azanova, Olga L. Vokhmyanina, Tatiana V. Dimakova, Igor A. Maltsev, Yulia O. Sharonova, Elena A. Pospelova, Evgeni M. Dianov

Author Affiliations +

Proceedings Volume 11029, Micro-structured and Specialty Optical Fibres VI; 110290U (2019) https://doi.org/10.1117/12.2520428
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Radiation-induced absorption (RIA) of light in the visible spectral region is studied in three differently coated puresilica- core, F-doped-silica cladding optical fibers ("pure-silica fibers", PSFs) drawn from the same preform under γ-irradiation up to 1 kGy, the irradiation temperature being varied in the range ±60 °C. The coating types include aluminum, copper and polyimide. It is found out that the extremum of the temperature dependence of RIA due to strainassisted self-trapped holes (STHs) in Al- and polyimide-coated PSFs is shifted towards higher temperatures (≥+60 °C) as compared to acrylate-coated PSFs, of which the extremum temperature was previously found to be around 0 °C. Additional heat treatment in the process of application of the above coatings is argued not to the main factor influencing RIA, which increases primarily to the very presence of a metal layer on the silica surface. The latter, in turn, increases strain in the silica network and the STH population. Photobleaching of the STH-associated bands and UV-tail produced by the probe white-light halogen lamp under γ-irradiation at a dose of ~1 kGy and dose rate of 1.31 Gy/s is assessed quantitatively to be in the range from 20% to 90%.

Citation Download Citation

Pavel F. Kashaykin, Alexander L. Tomashuk, Irina S. Azanova, Olga L. Vokhmyanina, Tatiana V. Dimakova, Igor A. Maltsev, Yulia O. Sharonova, Elena A. Pospelova, and Evgeni M. Dianov "Microscopic mechanisms of radiation-induced light attenuation in pure silica-core fibers: influence of heat treatment in the process of metal and polyimide coating application", Proc. SPIE 11029, Micro-structured and Specialty Optical Fibres VI, 110290U (16 April 2019); https://doi.org/10.1117/12.2520428

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Coating

Optical fibers

Metals

Heat treatments

Silica

Aluminum

Signal attenuation

Keywords/Phrases

Search In:

Publication Years